lean_workbook_plus_19164
ProvedProve
Preamble
import Mathlib.Analysis.Complex.Basic
Formal statement
theorem lean_workbook_plus_19164 : ∀ x y : ℝ, 4 * (x ^ 2 + x * y + y ^ 2) ≥ 3 * (x + y) ^ 2 := by sorry
Source
Prove
import Mathlib.Analysis.Complex.Basic
theorem lean_workbook_plus_19164 : ∀ x y : ℝ, 4 * (x ^ 2 + x * y + y ^ 2) ≥ 3 * (x + y) ^ 2 := by sorry